CN103754178A - Automobile tire pressure monitoring and remote key receiving sharing device and method - Google Patents
Automobile tire pressure monitoring and remote key receiving sharing device and method Download PDFInfo
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- CN103754178A CN103754178A CN201310752563.1A CN201310752563A CN103754178A CN 103754178 A CN103754178 A CN 103754178A CN 201310752563 A CN201310752563 A CN 201310752563A CN 103754178 A CN103754178 A CN 103754178A
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Abstract
The invention relates to an automobile tire pressure monitoring and remote key receiving sharing device and method. A receiving module of the device receives sent signals of a tire pressure monitoring module and a remote key, a communication module sends the sent signals to an automobile instrument or an automobile body control module, and a communication network of the communication module is a CAN network. The receiving module comprises a radio frequency (RF) receiver, a micro control unit (MCU) and a CAN emitter. The RF receiver receives RF signals of a tire pressure monitoring system and the remote key and transmits the RF signals to the MCU to be processed and sent to the CAN emitter. The automobile body control module of an automobile detects the detection result of the ignition switch state, and the detection result is sent to the receiving module through the communication module. In order to reduce the automobile manufacture cost, two RF signals of a tire pressure monitoring sensor and the remote key are received through one receiver to achieve sharing, so that the cost is reduced, and the safety and the reliability are greatly improved due to the module integration.
Description
Technical field
The present invention relates to body electronics field, be specifically related to the direction of monitoring automobile tyre pressure and remote-receiver.
Background technology
Development along with auto-industry, the trend of vehicle electronics is towards the future development of safety and traveling comfort, what bring is the increase of cost thereupon, and the price war between automaker grows in intensity, and the reduction of Automobile manufacturing cost becomes another ten-strike favorable factor.The current increase along with vehicle electronics function, radio receiver on automobile is more and more, reducing receiving device is also the large feasible direction reducing costs, such as integrating detecting the device of automotive tire pressure and the receiving device of automobile remote-control radio frequency, on cost, can save 50% left and right, be conducive to the development of auto manufacturing.
Summary of the invention
In order to reduce the manufacturing cost of automobile, the invention provides reception sharing device and the method for a kind of monitoring automobile tyre pressure and remote-control key, the present invention receives tire pressure sensor and two kinds of radiofrequency signals of remote-control key by a receiver, realize and share object, reduces costs.
Technical scheme of the present invention is: the reception sharing device of a kind of monitoring automobile tyre pressure and remote-control key, this device comprises receiver module and communication module, after the transmitted signal of receiver module reception & disposal monitoring tire pressure module and remote-control key, by communication module, send to instrument or the Body control module of automobile, the communication network of described communication module is CAN network.
Described receiver module comprises RF receptor, MCU microprocessing unit and CAN projector, and the radiofrequency signal of RF receptor reception system for monitoring pressure in tyre and remote-control key is delivered to after MCU microprocessing unit is processed and sends to CAN projector.The testing result that the Body control module of automobile detects igniting on off state sends to receiver module by communication module.
The shared method of reception of monitoring automobile tyre pressure and remote-control key, its step comprises:
Step 1, Body control module detect the state of ignition lock;
The testing result of the CAN transmitter receipt Body control module of step 2, receiver module;
Step 3, in the situation that igniting is closed, receiver module receives only the signal of remote-control key, signal is through signal processing module
With after communication module, send to Body control module;
Step 4, in the situation that ignition lock is opened, receiver module receives only the signal of monitoring tire pressure module, signal process
After signal processing module and communication module, send in the instrument of automobile and show.
The diagnosis command that step 5, receiver module send according to the diagnostic tool on automobile enters match pattern, receives id information storage that tire pressure sensor sends.
The present invention has following good effect: in the present invention, the receiving device of the receiving device of monitoring automobile tyre pressure and remote-control key is combined, reduced the manufacturing cost of automobile, the integrated of module is also greatly improved to safety and reliability simultaneously.
Accompanying drawing explanation
Fig. 1 system chart of the present invention;
The structured flowchart of Fig. 2 receiver module of the present invention;
Fig. 3 CAN interface circuit;
Fig. 4 radio-frequency (RF) receiving circuit.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and principle of work, manufacturing process and operation using method etc., be described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
As shown in Figure 1, the reception sharing device of a kind of monitoring automobile tyre pressure and remote-control key, this device comprises receiver module and communication module, sends to instrument or the Body control module of automobile after the transmitted signal of receiver module reception & disposal monitoring tire pressure module and remote-control key by communication module.Receiving device adopts RF receptor, and RF receptor received RF signal, can realize wireless fast transport; Communication module is comprised of CAN bus (CAN BUS), by CAN(ControLLer Area Net-work, i.e. controller local area network) network communicates, and CAN has become international standard, is widely used.
At system for monitoring pressure in tyre, (English is Tire Pressure Monitoring System, be abbreviated as TPMS) reception aspect, the modulation system of the radiofrequency signal of tire pressure sensor is mostly FSK(frequency modulation at present), frequency is 433.92MHz, the TB31371 scheme that the reception programme that the present invention uses is Toshiba, this scheme is supported the FSK(frequency modulation to 433.92MHz) signal, according to the signaling protocol of tyre pressure sensor, radiofrequency signal is resolved, corresponding information exchange is crossed to CAN network to be issued instrument and shows, reach the real-time tire pressure of reminding user tire, temperature, the information such as warning.
(English is Remote Keyless Entry to remote control key system signal, be abbreviated as RKE) reception aspect, the modulation system of remote radio frequency signal is mostly ASK(amplitude modulation), frequency is 433.92MHz, the TB31371 of Toshiba scheme used in the present invention is supported the ASK signal to 433.92MHz, same according to the protocol analysis with remote-control key, by CAN BUS network, issue BCM(body control module, be Body control module), BCM completes setting up defences or separating anti-and boot unlatching car load.
As shown in Figure 2, receiver module in the present invention includes RF receptor, MCU microprocessing unit and CAN projector, the system for monitoring pressure in tyre that RF receptor can receiving wire be sent and the radiofrequency signal of remote-control key are delivered to after MCU microprocessing unit is processed and send by CAN projector, and receiver module can pass through the judgement information of CAN transmitter receipt BCM Body control module.The performance perameter of receiver module is as following table:
In CAN BUS interface circuit in receiver module, adopted TJA1040T chip, as shown in Figure 3, TJA1040T is EMC the tuned slope automatically for chip and peripheral circuit thereof, without carrying out slope resistance adjustment, can carry out signal high-speed transfer, and low-power consumption.The 4th of TJA1040T chip, 1 and 8 pins are respectively by a resistance connectivity port CAN_RX1, CAN_TX1 and STBN1, the 3rd pin of chip meets power supply VCC by a resistance eutral grounding simultaneously, the 1st pin ground connection GND_CAN of chip, a choke coil B82790 connects between the 6th and 7 pins of TJA1040T chip, the use of B82790 choke coil has improved radio frequency immunity to a distrubance greatly, the use of choke coil in data line also greatly reduced interference emission, between the homonymy pin of choke coil, be also connected with a resistance, at chip TJA1040T the 6th, between 7 pins, be also connected with the resistance of series connection and the bi-directional voltage stabilizing pipe of series connection, during diode reverse conducting, still keep voltage stabilizing state, the common pin ground connection of the resistance bi-directional voltage stabilizing pipe of series connection, the 6th, 7 pins are finally connected to port CAN L and CAN H, the 5th pin of chip is connected to 6 by resistance, between series resistance between 7 pins.
The radio-frequency (RF) receiving circuit of RF receptor has adopted chip TB31371FNG, and chip and peripheral circuit thereof are as shown in Figure 4.The 1st of chip TB31371FNG, between 2 pins, be connected with the crystal oscillating circuit that crystal oscillator and electric capacity form, the 7th of chip, 9, 10, a branch road of 12 pins by another branch road of resistance connectivity port by resistance or capacity earth or meet power supply VCC, the 24th of chip, 23, 22, 19 pins link together by electric capacity or resistance, the 16th pin of chip is connected with electric capacity, inductance and resistance the antiresonant circuit being unified into can be amplified voltage, the 13rd pin of chip is connected with electric capacity, resistance, resonator, the antenna amplifying circuit that aerotron forms, normally the carrying out with assurance work by the careful amplification receiving.
The mode of operation of receiver module is divided into three kinds of parking pattern, driving mode and coupling (study) patterns, several mode of operations can judge by the state of ignition lock, ignition lock state can be detected by Body control module, by CAN network communication module, send to receiver module, carry out the switching of mode of operation.
The shared method of reception of monitoring automobile tyre pressure and remote-control key, its step comprises:
Step 1, Body control module detect the state of ignition lock;
The testing result of the CAN transmitter receipt Body control module of step 2, receiver module;
Step 3, parking pattern down-firing switch are closed, and under this pattern, receiver module receives only the radiofrequency signal from RKE system, after receiver module processing signals, transmits a signal to BCM, and BCM completes setting up defences or separating anti-and boot unlatching car load.
Step 4, driving mode down-firing switch are opened, and receiver module receives only from the radiofrequency signal that receives monitoring tire pressure module TPMS system.TPMS, by adopting tire pressure sensing unit and the tire pressure monitoring unit of twireless radio-frequency communication, has realized the real-time monitoring to tire pressure.Now, receiver module is crossed CAN network by corresponding information exchange and is issued instrument and show, reaches the information such as real-time tire pressure, temperature, warning of reminding user tire.
If long-time (being defaulted as 10 minutes) do not receive the rf data of any one or a plurality of tire pressure sensors, and resulting velocity information is greater than 25KM/H from CAN, receiving device sends sensor failure false alarm.
The diagnosis command that step 5, receiver module send according to the diagnostic tool on automobile enters match pattern (mode of learning), receives id information storage that tire pressure sensor sends.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (5)
1. the reception sharing device of a monitoring automobile tyre pressure and remote-control key, it is characterized in that, this device comprises receiver module and communication module, sends to instrument or the Body control module of automobile after the transmitted signal of receiver module reception & disposal monitoring tire pressure module and remote-control key by communication module.
2. reception sharing device according to claim 1, is characterized in that, the communication network of described communication module is CAN network.
3. reception sharing device according to claim 1, it is characterized in that, described receiver module comprises RF receptor, MCU microprocessing unit and CAN projector, and the radiofrequency signal of RF receptor reception system for monitoring pressure in tyre and remote-control key is delivered to after MCU microprocessing unit is processed and sends to CAN projector.
4. reception sharing device according to claim 1, is characterized in that, the testing result that the Body control module of automobile detects igniting on off state sends to receiver module by communication module.
5. the method shared according to the reception of the monitoring automobile tyre pressure described in claim 1-4 any one and remote-control key, is characterized in that, comprises the following steps and comprises:
Step 1, Body control module detect the state of ignition lock;
The testing result of the CAN transmitter receipt Body control module of step 2, receiver module;
Step 3, in the situation that igniting is closed, receiver module receives only the signal of remote-control key, signal sends to Body control module after signal processing module and communication module;
Step 4, in the situation that ignition lock is opened, receiver module receives only the signal of monitoring tire pressure module, signal sends in the instrument of automobile and shows after signal processing module and communication module;
The diagnosis command that step 5, receiver module send according to the diagnostic tool on automobile enters match pattern, receives id information storage that tire pressure sensor sends.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104875558A (en) * | 2015-05-11 | 2015-09-02 | 北京北方华德尼奥普兰客车股份有限公司 | Display device of tire pressure monitoring system in CAN field-bus instrument |
| CN106042793A (en) * | 2016-07-26 | 2016-10-26 | 金龙联合汽车工业（苏州）有限公司 | Integrated tire pressure intelligent detection system |
| CN106314045A (en) * | 2016-08-17 | 2017-01-11 | 北京中聚高科科技有限公司 | Tire pressure monitoring device and method based on bus awakening mode |
| CN106411341A (en) * | 2016-11-17 | 2017-02-15 | 合肥晟泰克汽车电子有限公司 | Automotive adaptive receiving demodulation device and control method thereof |
| CN106994869A (en) * | 2017-03-07 | 2017-08-01 | 北汽福田汽车股份有限公司 | Method, apparatus and system for tire pressure monitoring system matching |
| CN107015838A (en) * | 2017-05-24 | 2017-08-04 | 深圳市永奥图电子有限公司 | A kind of upgrade-system of sensing device and system for monitoring pressure in tyre |
| CN108173961A (en) * | 2018-01-16 | 2018-06-15 | 山东省科学院自动化研究所 | The ASK and FSK of a kind of multifrequency point and the automobile radio communication mode and equipment deposited |
| CN110834498A (en) * | 2019-11-28 | 2020-02-25 | 山东省科学院自动化研究所 | Single-antenna integrated vehicle body control system and wireless communication method |
| CN112248726A (en) * | 2020-10-28 | 2021-01-22 | 深圳市道通科技股份有限公司 | Method and device for displaying function menu interface of automobile tire pressure monitoring system |
| CN112693265A (en) * | 2020-12-11 | 2021-04-23 | 江门市大长江集团有限公司 | Electronic instrument alarm device, method, electronic equipment and storage medium |
| CN114537055A (en) * | 2022-03-11 | 2022-05-27 | 齐鲁工业大学 | Wireless receiving system and method for automobile |
| RU219459U1 (en) * | 2023-04-25 | 2023-07-18 | Общество с ограниченной ответственностью "Акцептум-Инжиниринг" | Service and diagnostic device for the wheel condition monitoring system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875558A (en) * | 2015-05-11 | 2015-09-02 | 北京北方华德尼奥普兰客车股份有限公司 | Display device of tire pressure monitoring system in CAN field-bus instrument |
| CN106042793A (en) * | 2016-07-26 | 2016-10-26 | 金龙联合汽车工业（苏州）有限公司 | Integrated tire pressure intelligent detection system |
| CN106314045A (en) * | 2016-08-17 | 2017-01-11 | 北京中聚高科科技有限公司 | Tire pressure monitoring device and method based on bus awakening mode |
| CN106411341A (en) * | 2016-11-17 | 2017-02-15 | 合肥晟泰克汽车电子有限公司 | Automotive adaptive receiving demodulation device and control method thereof |
| CN106994869A (en) * | 2017-03-07 | 2017-08-01 | 北汽福田汽车股份有限公司 | Method, apparatus and system for tire pressure monitoring system matching |
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| CN107015838B (en) * | 2017-05-24 | 2023-12-19 | 深圳市永奥图电子有限公司 | Upgrade system of sensing device and tire pressure monitoring system |
| CN107015838A (en) * | 2017-05-24 | 2017-08-04 | 深圳市永奥图电子有限公司 | A kind of upgrade-system of sensing device and system for monitoring pressure in tyre |
| CN108173961A (en) * | 2018-01-16 | 2018-06-15 | 山东省科学院自动化研究所 | The ASK and FSK of a kind of multifrequency point and the automobile radio communication mode and equipment deposited |
| CN108173961B (en) * | 2018-01-16 | 2020-08-04 | 山东省科学院自动化研究所 | Multi-frequency ASK and FSK coexisting automobile wireless communication method and equipment |
| CN110834498A (en) * | 2019-11-28 | 2020-02-25 | 山东省科学院自动化研究所 | Single-antenna integrated vehicle body control system and wireless communication method |
| CN112248726B (en) * | 2020-10-28 | 2022-02-08 | 深圳市道通科技股份有限公司 | Method and device for displaying function menu interface of automobile tire pressure monitoring system |
| CN112248726A (en) * | 2020-10-28 | 2021-01-22 | 深圳市道通科技股份有限公司 | Method and device for displaying function menu interface of automobile tire pressure monitoring system |
| CN112693265A (en) * | 2020-12-11 | 2021-04-23 | 江门市大长江集团有限公司 | Electronic instrument alarm device, method, electronic equipment and storage medium |
| CN114537055A (en) * | 2022-03-11 | 2022-05-27 | 齐鲁工业大学 | Wireless receiving system and method for automobile |
| RU219459U1 (en) * | 2023-04-25 | 2023-07-18 | Общество с ограниченной ответственностью "Акцептум-Инжиниринг" | Service and diagnostic device for the wheel condition monitoring system |
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Address after: 241000 No. 48, Yinhu North Road, Wuhu District, China (Anhui) Free Trade Pilot Zone, Wuhu City, Anhui Province Patentee after: Wuhu Etec Automotive Electronics Co.,Ltd. Address before: 241000 No. 48, Yinhu North Road, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: ATECH AUTOMOTIVE (WUHU) Co.,Ltd. |